Enlarge image for index to numbers.

1. Triceratium digitale (Brun) = Triceratium digitale J.-J.Brun?, top view
2. Navicula lyra (Ehrenberg) = Lyrella lyra (Ehrenberg) Karajeva, top view
3. Navicula excavata (Greville) = Lyrella excavata (Greville) D.G.Mann, top view
4. Triceratium mirificum (Brun) = Triceratium mirificum J.-J.Brun?, top view
5. Triceratium pentacrinus (Wallich) = Triceratium pentacrinus (Ehrenberg) G.C.Wall., top view
6. Actinoptychus constellatus (Brun) = Actinoptychus constellatus J.-J.Brun, top view
7. Aulacodiscus mammosus (Greville) = Aulacodiscus mammosus R.K. Greville, top view
8. Navicula Wrightii (Meara) = Navicula wrightii O'Meara, top view
9. Auliscus crucifer (Brun) = Auliscus sp.?, top view
10. Biddulphia pulchella (Gray) = Biddulphia biddulphiana (J.E.Smith) Boyer, top view
11. Auliscus craterifer (Brun) = Auliscus johnsonianus var. craterifer J.-J.Brun, top view
12. Auliscus mirabilis (Greville) = Auliscus mirabilis R.K.Greville, top view
13. Aulacodiscus Grevilleanus (Norman) = Aulacodiscus grevilleanus G.Norman ex R.K.Greville, top view
14. Surirella Macraeana (Greville) = Surirella macraeana R.K.Greville, top view
15. Denticella regia (Max Schultze) = Odontella regia (Schultze) Simonsen, protoplast
16. Asterolampra eximia (Greville) = Asterolampra eximia Greville, top view
17. Actinoptychus heliopelta (Brun) = Actinoptychus heliopelta var.? A.Grunow, top view
18. Plagiogramma barbadense (Brun) = Rutilaria barbadensis (Ralfs) Rataboul & Brun, top view
19. Pinnularia Mülleri (Haeckel) = Pinnularia sp.?, side view
20. Biddulphia granulata (Smith) = Odontella granulata (Roper) R.Ross, side view
21. Triceratium pentacrinus (Wallich) = Triceratium pentacrinus (Ehrenberg) G.C.Wall., side view
22. Triceratium moronense (Greville) = Triceratium moronense Greville?, top view